Preparation

Preheat broiler.

Into a bowl flake tuna and stir in mayonnaise, fennel, olives, parsley, lemon juice, and salt and pepper to taste. Divide tuna salad among toast slices and top with Cheddar. In a shallow baking pan broil sandwiches under broiler about 4 inches from heat until cheese is bubbling, 1 to 2 minutes.